JPH04144066A - Fuel cell - Google Patents
Fuel cellInfo
- Publication number
- JPH04144066A JPH04144066A JP2269033A JP26903390A JPH04144066A JP H04144066 A JPH04144066 A JP H04144066A JP 2269033 A JP2269033 A JP 2269033A JP 26903390 A JP26903390 A JP 26903390A JP H04144066 A JPH04144066 A JP H04144066A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- electrode
- fuel gas
- power generation
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 30
- 239000002737 fuel gas Substances 0.000 claims abstract description 40
- 238000010248 power generation Methods 0.000 claims abstract description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000003607 modifier Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009467 reduction Effects 0.000 description 3
- 238000002407 reforming Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、燃料電池に関し、詳しくは、発電部の燃料極
側に供給する燃料ガスを減圧する減圧手段、及び、前記
発電部の酸素極側に酸素含有ガスを加圧供給する加圧手
段を備える燃料電池に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fuel cell, and more specifically, a pressure reducing means for reducing the pressure of fuel gas supplied to the fuel electrode side of a power generation section, and an oxygen electrode of the power generation section. The present invention relates to a fuel cell equipped with a pressurizing means for supplying oxygen-containing gas under pressure to the side thereof.
従来、上記形式の燃料電池においては、第２図に示すよ
うに、発電部（１）の燃料極（１ａ）側に供給する燃料
ガス（第２図の例では、原燃料ガスを改質装置（１０，
１１）により改質した改質燃料ガス）を減圧する減圧手
段として、圧力調整弁（Ｖ）を装備し、また、発電部（
１）の酸素極（ｌｂ）側に酸素含有ガス（第２図の例で
は空気）を加圧供給する加圧手段として、電動ファン（
Ｆ）を装備していた。Conventionally, in the above type of fuel cell, as shown in FIG. 2, fuel gas is supplied to the fuel electrode (1a) side of the power generation section (1) (in the example shown in FIG. (10,
A pressure regulating valve (V) is equipped as a pressure reducing means for reducing the pressure of the reformed fuel gas (reformed fuel gas reformed by
1) An electric fan (
It was equipped with F).
しかし、上記従来構成では、燃料電池の運転において、
酸素含有ガス加圧供給用の電動ファン（Ｆ）に対する電
力供給か必要であるために、燃料電池全体としてのエネ
ルギ効率の向上か制限される問題かあった。However, in the above conventional configuration, in the operation of the fuel cell,
Since it is necessary to supply electric power to the electric fan (F) for supplying the oxygen-containing gas under pressure, there is a problem in that the improvement of the energy efficiency of the fuel cell as a whole is limited.
本発明の目的は、燃料極側への燃料ガス供給に要する減
圧手段、及び、酸素極側への酸素含有ガス供給に要する
加圧手段を合理的に構成することにより、上記問題の解
消を図る点にある〔課題を解決するための手段〕
本発明による燃料電池の特徴構成は、発電部の燃料極側
に供給する燃料ガスを減圧する減圧手段、及び、前記発
電部の酸素極側に酸素含有ガスを加圧供給する加圧手段
を備える構成において、
前記減圧手段が、燃料ガスの圧力エネルギを動力発生に
消費させて、燃料ガスを減圧するように構成され、前記
加圧手段が、前記減圧手段での前記発生動力により酸素
含有ガスに対して加圧作動するように構成されているこ
とにあり、その作用・効果は次の通りである。An object of the present invention is to solve the above problems by rationally configuring the depressurizing means required for supplying fuel gas to the fuel electrode side and the pressurizing means required for supplying oxygen-containing gas to the oxygen electrode side. [Means for Solving the Problems] The characteristic configuration of the fuel cell according to the present invention includes a pressure reducing means for reducing the pressure of the fuel gas supplied to the fuel electrode side of the power generation section, and a pressure reduction means for reducing the pressure of the fuel gas supplied to the fuel electrode side of the power generation section; In the configuration including a pressurizing means for supplying the contained gas under pressure, the pressure reducing means is configured to reduce the pressure of the fuel gas by consuming the pressure energy of the fuel gas to generate power, and the pressurizing means The device is configured to pressurize the oxygen-containing gas using the power generated by the pressure reducing means, and its functions and effects are as follows.
つまり、上記特徴構成によれば、燃料ガスは、上記減圧
手段において保育圧力エネルギか動力発生に消費される
ことで減圧されて、発電部の燃料極側に供給され、一方
、酸素含有ガスは、燃料ガスの圧力エネルギをもって減
圧手段で発生させた上記動力による加圧手段の加圧作動
により加圧されて、発電部の酸素極側に供給される。That is, according to the characteristic configuration described above, the fuel gas is depressurized by being consumed in the pressure reducing means to generate power and is supplied to the fuel electrode side of the power generation section, while the oxygen-containing gas is The fuel gas is pressurized by the pressurizing operation of the pressurizing means using the power generated by the pressure reducing means using the pressure energy of the fuel gas, and is supplied to the oxygen electrode side of the power generation section.
すなわち、先述の従来構成では圧力調整弁にての単なる
ロスとなっていた燃料ガスの圧力エネルギを、減圧手段
での燃料ガス減圧過程で動力に変換して取り出すことに
より、その圧力エネルギを加圧手段の駆動エネルギに有
効利用して、酸素含有ガスを加圧するのである。In other words, the pressure energy of the fuel gas, which was a mere loss at the pressure regulating valve in the conventional configuration described above, is converted into power and taken out during the fuel gas pressure reduction process by the pressure reduction means, thereby pressurizing the pressure energy. The driving energy of the means is effectively used to pressurize the oxygen-containing gas.
以上作用の結果、酸素含有ガスの加圧のために電動ファ
ンへの電力供給を必要としていた従来装置に比べ、その
ような酸素含有ガスの加圧のための電力供給を不要にで
きることで、燃料電池全体としてのエネルギ効率を大き
く向上し得るに至った。As a result of the above actions, compared to conventional equipment that required power supply to an electric fan to pressurize oxygen-containing gas, it is possible to eliminate the need for power supply to pressurize oxygen-containing gas, thereby reducing fuel consumption. It has now been possible to greatly improve the energy efficiency of the battery as a whole.
次に実施例を説明する。 Next, an example will be described.
第１図は燃料電池の装置構成を示し、（１）は電解質材
を収納した多数のセルを内装する発電部、（２）は原燃
料ガスとして都市ガスを供給する原燃料ガス供給路であ
り、この原燃料ガス供給路（２）には脱硫器（３）を介
装しである。Figure 1 shows the device configuration of a fuel cell, in which (1) is a power generation section that includes a large number of cells containing electrolyte materials, and (2) is a raw fuel gas supply path that supplies city gas as raw fuel gas. A desulfurizer (3) is installed in this raw fuel gas supply path (2).
また、（４）は空気（酸素含有ガスの一例）を供給する
空気供給路である。Further, (4) is an air supply path that supplies air (an example of oxygen-containing gas).
（５）は発電部（１）に対する冷却水の循環路であり、
（６）はその冷却水循環路（５）に介装した気水分離器
である。(5) is a cooling water circulation path for the power generation section (1),
(6) is a steam/water separator installed in the cooling water circulation path (5).
（７）は水蒸気流路（８）を介し気水分離器（６）から
水蒸気供給を受けるエゼクタであり、このエゼクタ（７
）は、気水分離器（６）からの水蒸気供給により原燃料
ガス供給路（２）から都市ガスを吸入して、その吸入都
市ガスと水蒸気を改質系燃料ガス供給路（９）へ送出す
る。(7) is an ejector that receives steam supply from the steam separator (6) via the steam flow path (8);
) sucks city gas from the raw fuel gas supply line (2) using steam supplied from the steam separator (6), and sends the drawn city gas and steam to the reforming system fuel gas supply line (9). do.
改質系燃料ガス供給路（９）には、改質器（ｌＯ）及び
変成器（１１）を介装するとともに、それら改質・変成
器（１０）、 （ＩＩ）により改質した改質燃料ガスを
所定の圧力まで減圧して発電部（１）の燃料極（ｌａ）
側に供給する減圧手段（１２）を介装しである。The reforming system fuel gas supply path (9) is equipped with a reformer (lO) and a shift converter (11), and the reformer reformed by the reformer/shift converter (10), (II). The fuel gas is depressurized to a predetermined pressure and the fuel electrode (la) of the power generation section (1) is
A decompression means (12) is provided to supply the pressure to the side.
（１３）は発電部（１）の燃料極（１ａ）側から排出さ
れる高温のオフガスを改質用の加熱源として改質器（ｌ
Ｏ）に供給するオフガス供給路であり、改質器（１０）
においては、都市ガスの主成分であるＣＨ，と水蒸気と
の下記の反応
ＣＨ，土水蒸気＃Ｈ２＋ＣＯ＋ＣＯ□
によりＨ２を生成し、また、変成器（Ｉｆ）においては
、改質器（１０）で得られるＣＯと水蒸気との下記の反
応
ＣＯ＋水蒸気＃Ｈ２＋ＣＯ□
によりＨ２をさらに増成し、もって、発電部（１）での
実質的燃料となるＨ２を多量に含む改質燃料ガスを得る
。(13) is a reformer (l
This is an off-gas supply path that supplies the gas to the reformer (10).
In the system, H2 is produced by the following reaction between CH, which is the main component of city gas, and water vapor. H2 is further increased by the following reaction of CO and water vapor: CO+steam #H2+CO□, thereby obtaining reformed fuel gas containing a large amount of H2, which becomes the substantial fuel for the power generation section (1).
一方、空気供給路（４）は発電部（１）の空気極（酸素
極）（ｌｂ）側に接続し、そして、この空気供給路（４
）には、発電部（１）の空気極（１ｂ）側へ空気を加圧
供給するための加圧手段（１４）を介装しである。On the other hand, the air supply path (4) is connected to the air electrode (oxygen electrode) (lb) side of the power generation section (1).
) is interposed with a pressurizing means (14) for supplying air under pressure to the air electrode (1b) side of the power generating section (1).
改質系燃料ガス供給路（９）における前記減圧手段（１
２）、及び、空気供給路（４）における上記加圧手段（
１４）の具体的構成については、それら両手段（１２）
、 （１４）の構成装置としてターボ給気装置（１５）
を設け、そして、そのターボ給気装置（１５）における
タービン部（１５ａ）を、改質燃料ガスに対する上記減
圧手段（１２）として改質燃料ガス供給路（９）に介装
し、また、そのターボ給気装置（１５）においてタービ
ン部（１５ａ）の発生動力により駆動されるブロア部（
１５ｂ）を、空気に対する上記加圧手段（１４）として
空気供給路（４）に介装しである。The pressure reducing means (1) in the reforming system fuel gas supply path (9)
2), and the pressurizing means (
Regarding the specific configuration of 14), both means (12)
, Turbo air supply system (15) as a component of (14)
The turbine section (15a) of the turbo air supply device (15) is interposed in the reformed fuel gas supply path (9) as the pressure reducing means (12) for the reformed fuel gas, and the In the turbo air supply system (15), a blower section (
15b) is interposed in the air supply path (4) as the pressurizing means (14) for air.
つまり、改質燃料ガスの保存圧力エネルギをタービン部
（１５ａ）で動力発生に消費させることで、発電部（１
）の燃料極（１ａ）側へ供給する改質燃料ガスを減圧し
、一方、空気は、タービン部（１５ａ）での発生動力に
よるブロア部（１５ｂ）の加圧作動をもって、発電部（
１）の空気極（１ｂ）側へ加圧供給する構成としである
。In other words, by consuming the stored pressure energy of the reformed fuel gas to generate power in the turbine section (15a), the power generation section (15a)
), the reformed fuel gas supplied to the fuel electrode (1a) side is reduced in pressure, while the air is pressurized by the blower part (15b) by the power generated in the turbine part (15a), and the air is supplied to the power generation part (
1) is configured to supply pressure to the air electrode (1b) side.
図中、（１６）は改質器（ｌＯ）で加熱源として利用し
た排ガスの排出路であり、（１７）は気水分離器（６）
から余剰の水蒸気を送出する水蒸気路である。In the figure, (16) is the exhaust gas exhaust path used as a heating source in the reformer (lO), and (17) is the steam separator (6).
This is a water vapor path that sends out excess water vapor.
また、図中省略しであるが、気水分離器（６）には純水
の補給装置を接続しである。Although not shown in the figure, a pure water supply device is connected to the steam/water separator (6).
（１８ａ）、 （１８ｂ）は、改質器（ｌＯ）へ供給す
る燃料ガスを改質器（１０）通過後の燃料ガスと熱交換
させて予熱する熱交換器であり、（１９ａ）、 （１９
ｂ）は、発電部（１）の空気極（ｌｂ）側へ供給する空
気を発電部（１）の空気極（ｌｂ）側からの高温排出空
気と熱交換させて予熱する熱交換器である。(18a) and (18b) are heat exchangers that preheat the fuel gas supplied to the reformer (lO) by exchanging heat with the fuel gas that has passed through the reformer (10); 19
b) is a heat exchanger that preheats the air supplied to the air electrode (lb) side of the power generation section (1) by exchanging heat with the high temperature exhaust air from the air electrode (lb) side of the power generation section (1). .
尚、図中（イ）〜（ネ）の各点での状態値の一例は、（
イ）点−−−−−−７，０ｋｇ／ｃｍ”Ｇ 、 １
７０°Ｃ（ロ）点−−−−−−０，７ｋｇ／ｃｍ２Ｇ
、 ４２３°Ｃ（ハ）点−・−・ ０．６ ｋｇ
／ｃｍ２Ｇ 、 ２００°Ｃ（ニ）点−−−−−−
０，１ｋｇ／ｃｍ２Ｇ 、 １６０°Ｃ（ネ）点・
−・−０，０ｋｇ／ｃｍ２Ｇ 、 ２０″Ｃ（へ）点
−・−−−０，１ｋｇ／ｃｍ”Ｇ 、 １５５°Ｃ
である。An example of the state value at each point (a) to (ne) in the figure is (
b) Point---7,0kg/cm"G, 1
70°C (b) point---0.7kg/cm2G
, 423°C (c) point --- 0.6 kg
/cm2G, 200°C (d) point------
0.1kg/cm2G, 160°C (ne) point・
-・-0,0kg/cm2G, 20"C (to) point-----0,1kg/cm"G, 155°C
It is.
次に別実施例を列記する。 Next, another example will be listed.
（１）減圧手段（１２）には、圧力エネルギを動力に変
換する各種形式の装置を適用できる。(1) Various types of devices that convert pressure energy into power can be applied to the pressure reducing means (12).
（２）加圧手段（１４）には、上記減圧手段（１２）の
発生動力をもって加圧作動させるものてあれば、種々の
加圧形式の装置を適用できる。(2) Various types of pressurizing devices can be applied to the pressurizing means (14), as long as they are pressurized by the power generated by the pressure reducing means (12).
（３）燃料ガスには、改質を施して発電部（１）の燃料
極（ｌａ）側に供給するもの、あるいは、改質を施さず
に発電部（１）の燃料極（ｌａ）側に供給できるもの、
いずれにしても各種のものを適用できる。(3) The fuel gas may be reformed and supplied to the fuel electrode (la) side of the power generation section (1), or it may not be reformed and supplied to the fuel electrode (la) side of the power generation section (1). What can be supplied to
In any case, various types can be applied.
また、発電部（１）の酸素極（ｌｂ）側へ供給する酸素
含有ガスも、空気に限定されるものではない。Furthermore, the oxygen-containing gas supplied to the oxygen electrode (lb) side of the power generation section (1) is not limited to air.
（４）原燃料ガスの減圧を要する場合には、原燃料ガス
に対する減圧手段と、酸素含有ガスに対する加圧手段と
に対して、本発明を適用してもよい。(4) When it is necessary to reduce the pressure of the raw fuel gas, the present invention may be applied to the pressure reducing means for the raw fuel gas and the pressurizing means for the oxygen-containing gas.
（５）燃料電池における各部の構成は、前述実施例の構
成に限定されるものではなく、種々の構成変更が可能で
ある。(5) The configuration of each part in the fuel cell is not limited to the configuration of the above embodiment, and various configuration changes are possible.
また、減圧手段（１２）の発生動力をもって加圧作動せ
る加圧手段（１４）に加えて、別動力により酸素含有ガ
スに対して加圧作動させる補助的な加圧手段を付加装備
してもよい。Furthermore, in addition to the pressurizing means (14) which is pressurized using the power generated by the depressurizing means (12), an auxiliary pressurizing means may be additionally provided to pressurize the oxygen-containing gas using separate power. good.
尚、特許請求の範囲の項に図面との対照を便利にするた
め符号を記すが、該記入により本発明が添付図面の構成
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure of the accompanying drawings by such entry.
第１図は、本発明の実施例を示す装置構成図であり、第
２図は、従来例を示す装置構成図である。
（１）・・・・・・発電部、（ｌａ）・・・・・・燃料
極、（ｌｂ）・・・・・・酸素極、（１２）・・・・・
・減圧手段、（１４）・・・・・・加圧手段。FIG. 1 is a diagram showing the configuration of an apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram showing the configuration of a conventional apparatus. (1)...Power generation section, (la)...Fuel electrode, (lb)...Oxygen electrode, (12)...
- Pressure reduction means, (14)... Pressurization means.
Claims (1)
減圧する減圧手段（１２）、及び、前記発電部（１）の
酸素極（１ｂ）側に酸素含有ガスを加圧供給する加圧手
段（１４）を備える燃料電池であって、前記減圧手段（
１２）が、燃料ガスの圧力エネルギを動力発生に消費さ
せて、燃料ガスを減圧するように構成され、前記加圧手
段（１４）が、前記減圧手段（１２）での前記発生動力
により酸素含有ガスに対して加圧作動するように構成さ
れている燃料電池。A pressure reducing means (12) that reduces the pressure of the fuel gas supplied to the fuel electrode (1a) side of the power generation section (1), and pressurized supply of oxygen-containing gas to the oxygen electrode (1b) side of the power generation section (1). A fuel cell comprising a pressurizing means (14), the depressurizing means (14)
12) is configured to reduce the pressure of the fuel gas by consuming the pressure energy of the fuel gas to generate power, and the pressurizing means (14) uses the power generated by the pressure reducing means (12) to reduce the pressure of the oxygen-containing gas. A fuel cell configured to operate under pressure against gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2269033A JPH04144066A (en) | 1990-10-05 | 1990-10-05 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2269033A JPH04144066A (en) | 1990-10-05 | 1990-10-05 | Fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04144066A true JPH04144066A (en) | 1992-05-18 |
Family
ID=17466745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2269033A Pending JPH04144066A (en) | 1990-10-05 | 1990-10-05 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04144066A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0926756A1 (en) * | 1997-12-11 | 1999-06-30 | dbb fuel cell engines GmbH | PEM fuel cell system as well as its method of operation |
| JPH11260386A (en) * | 1998-03-12 | 1999-09-24 | Toshiba Corp | Fuel cell power generating plant and its operation control method |
| KR20150079200A (en) * | 2013-12-31 | 2015-07-08 | 두산중공업 주식회사 | Fuel cell system |
-
1990
- 1990-10-05 JP JP2269033A patent/JPH04144066A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0926756A1 (en) * | 1997-12-11 | 1999-06-30 | dbb fuel cell engines GmbH | PEM fuel cell system as well as its method of operation |
| US6190791B1 (en) | 1997-12-11 | 2001-02-20 | Xcellsis Gmbh | Proton exchange membrane (PEM) fuel cell system and process of operating same |
| JPH11260386A (en) * | 1998-03-12 | 1999-09-24 | Toshiba Corp | Fuel cell power generating plant and its operation control method |
| KR20150079200A (en) * | 2013-12-31 | 2015-07-08 | 두산중공업 주식회사 | Fuel cell system |
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